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2C0 + 2^2 (C1)/(2) + 2^3 (C2)/(3) + ………....

`2C_0 + 2^2 (C_1)/(2) + 2^3 (C_2)/(3) + ………. + 2^(n+1) (C_n)/(n+1) = (3^(n+1) - 1)/(n+1) `

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If (1+x)^n = C_0 + C_1x + C_2x^2 + ………. + C_n x^n , prove that : C_0 + (C_1)/(2) + (C_2)/(3) + ……. + (C_n)/(n+1) = (2^(n+1) -1)/(n+1)

p*C_(0)+p^(2)(C_(1))/(2)+p^(3)(C_(2))/(3)+...+p^(n+1)*(C_(n))/(n+1)=((p+1)^(n+1)-1)/(n+1)

If (1 + x)^(n) = C_(0) + C_(1) x + C_(2) x^(2) + C_(3) x^(3) + … + C_(n) x^(n) , prove that C_(0) - (C_(1))/(2) + (C_(2))/(3) -…+ (-1)^(n) (C_(n))/(n+1) = (1)/(n+1) .

If (1+x)^n=C_0+C_1x+C_2x^2+C_3x^3+...+C_nx^n then prove that 2.C_0+2^2C_1/2+2^3C_2/3+2^4C_3/4+...+2^(n+1)C_n/(n+1)=(3^(n+1)-1)/(n+1)

2.C_(0)+(2^(2).C_(1))/(2)+(2^(3).C_(2))/(3)+(2^(4).C_(3))/(4)+......+(2^(n+1).C_(n))/(n+1)=(3^(n+1)-1)/(n+1)

Prove that (i) C_(1)+2C_(2)+3C_(3)+……+nC_(n)=n.2^(n+1) (ii) C_(0)+(C_(1)/(2)+(C_(2))/(3)+….+(C_(n))/(n+1)=(2^(n+1)-1)/(n+1)

2.C_(0)+(2^(2)*C_(1))/(2)+(2^(3)*C_(2))/(3)+(2^(4)*C_(3))/(4)+.........+(2^(n+1)*C_(n))/(n+1)=(3^(n+1)-1)/(n+1)